MX2021005911A - Current picture referencing block vector initialization with dual tree. - Google Patents

Current picture referencing block vector initialization with dual tree.

Info

Publication number
MX2021005911A
MX2021005911A MX2021005911A MX2021005911A MX2021005911A MX 2021005911 A MX2021005911 A MX 2021005911A MX 2021005911 A MX2021005911 A MX 2021005911A MX 2021005911 A MX2021005911 A MX 2021005911A MX 2021005911 A MX2021005911 A MX 2021005911A
Authority
MX
Mexico
Prior art keywords
current picture
vector
block vector
dual tree
chroma
Prior art date
Application number
MX2021005911A
Other languages
Spanish (es)
Inventor
Franck GALPIN
Fabrice Leleannec
Tangi Poirier
Original Assignee
Interdigital Vc Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Vc Holdings Inc filed Critical Interdigital Vc Holdings Inc
Publication of MX2021005911A publication Critical patent/MX2021005911A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/517—Processing of motion vectors by encoding
    • H04N19/52—Processing of motion vectors by encoding by predictive encoding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A chroma component block vector is initialized using one of a neighboring or collocated luma block vector when current picture referencing mode is used and when dual tree is enabled. In a first embodiment, if a collocated luminance block is not coded in current picture reference mode, a luma vector from a left chroma subblock is used. When the left chroma subblock is not coded in current picture reference mode, a luma vector from the above chroma subblock is used, and if that is not available, a default vector is used. In a second embodiment, a collocated luma block partition is used to derive a chroma block vector.
MX2021005911A 2018-11-20 2019-11-19 Current picture referencing block vector initialization with dual tree. MX2021005911A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18306529 2018-11-20
PCT/US2019/062088 WO2020106653A1 (en) 2018-11-20 2019-11-19 Current picture referencing block vector initialization with dual tree

Publications (1)

Publication Number Publication Date
MX2021005911A true MX2021005911A (en) 2021-06-30

Family

ID=67436928

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021005911A MX2021005911A (en) 2018-11-20 2019-11-19 Current picture referencing block vector initialization with dual tree.

Country Status (6)

Country Link
US (1) US11979585B2 (en)
EP (1) EP3884672A1 (en)
JP (1) JP2022507874A (en)
CN (1) CN113170153A (en)
MX (1) MX2021005911A (en)
WO (1) WO2020106653A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2495941B (en) * 2011-10-25 2015-07-08 Canon Kk Method and apparatus for processing components of an image
GB2498550B (en) * 2012-01-19 2016-02-24 Canon Kk Method and device for processing components of an image for encoding or decoding
US11438609B2 (en) 2013-04-08 2022-09-06 Qualcomm Incorporated Inter-layer picture signaling and related processes
CN105453561B (en) * 2013-08-13 2018-10-26 寰发股份有限公司 The method of export acquiescence disparity vector in three-dimensional and multi-view video coding
WO2016074147A1 (en) 2014-11-11 2016-05-19 Mediatek Singapore Pte. Ltd. Separated coding tree for luma and chroma
US10455228B2 (en) 2016-03-21 2019-10-22 Qualcomm Incorporated Determining prediction parameters for non-square blocks in video coding
EP3449630A4 (en) * 2016-05-28 2019-11-27 MediaTek Inc. Method and apparatus of current picture referencing for video coding
CN117528109A (en) 2016-11-28 2024-02-06 英迪股份有限公司 Image encoding method, image decoding method, and method for transmitting bit stream
US10873746B2 (en) 2016-12-21 2020-12-22 Sharp Kabushiki Kaisha Intra prediction image generation device using cross-component liner model, image decoding apparatus, and image coding apparatus using same
US10448025B1 (en) 2018-05-11 2019-10-15 Tencent America LLC Method and apparatus for video coding
CN110662059B (en) * 2018-06-29 2021-04-20 北京字节跳动网络技术有限公司 Method and apparatus for storing previously encoded motion information using a lookup table and encoding subsequent blocks using the same

Also Published As

Publication number Publication date
US20220021890A1 (en) 2022-01-20
JP2022507874A (en) 2022-01-18
US11979585B2 (en) 2024-05-07
WO2020106653A1 (en) 2020-05-28
EP3884672A1 (en) 2021-09-29
CN113170153A (en) 2021-07-23

Similar Documents

Publication Publication Date Title
EP3935854A4 (en) Chroma coding mode determination based on matrix-based intra prediction
MY177576A (en) Pixel pre-processing and encoding
PH12017501109B1 (en) Methods of palette based prediction for non-444 color format in video and image coding
MX2019015871A (en) Motion vector refinement for multi-reference prediction.
EP3931748A4 (en) Sub-picture based slice addresses in video coding
MX2017014312A (en) Pixel pre-processing and encoding.
WO2020084305A9 (en) Bicyclic peptide ligands and uses thereof
MX2017004210A (en) Hash-based encoder decisions for video coding.
EP3973450A4 (en) Chroma intra mode derivation in screen content coding
EP3831056A4 (en) Reference picture management in video coding
MY194535A (en) Search region for motion vector refinement
EP4005215A4 (en) Small chroma block size restriction in video coding
MX2021013417A (en) Clec12a-binding polypeptides and uses thereof.
WO2020118211A3 (en) Interaction of illumination compensation with inter-prediction
MX2021003048A (en) Apparatus and method for conditional decoder-side motion vector refinement in video coding.
GB201801833D0 (en) Switching between multidirectional and limited viewport video content
MX2020013722A (en) Antibodies comprising a polypeptide inserted in framework 3 region.
CA194493S (en) Pressure cooker
EP4018662A4 (en) Size restriction based for chroma intra mode
AU2019321490A8 (en) Ox40-binding polypeptides and uses thereof
AU2018448903A8 (en) Antibodies recognizing tau
FI3939290T3 (en) Interlaced video coding with leading pictures
EP3804341A4 (en) Dynamically generating an image from digital content items
EP3985969A4 (en) Luma mapping- and chroma scaling-based video or image coding
MX2020013170A (en) Agricultural composition.